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National Mower 68 DL TRIPLEX User Manual

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MODEL 68 SR TRIPLEX MOWER
MODEL 68 DL TRIPLEX MOWER
NATIONAL MOWER CO.
700 Raymond Ave., P.O. Box 14299
St. Paul, Minnesota 55114-0299, U.S.A.
Phone (651) 646-4079 – Fax (651) 646-2887
www.nationalmower.com
OWNER'S MANUAL
Includes Operation, Maintenance and Parts List
June 2003
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National Mower 68 DL TRIPLEX Specifications

General IconGeneral
BrandNational Mower
Model68 DL TRIPLEX
CategoryLawn Mower
LanguageEnglish

Summary

ONE YEAR LIMITED WARRANTY

SAFETY INFORMATION

National Mower Safe Operating Practices

Guidelines for safe mower operation, including preparation and general rules.

Hill Operation Precautions

Precautions and guidelines for operating the mower safely on slopes.

MAINTENANCE

Lubrication

Recommended lubrication points, types, and frequencies for machine maintenance.

SAFETY AND CONTROL DECALS

Main Operation Controls Decals

Decals for main clutch, differential, throttle, and wing mower controls.

Ignition and Transport Controls Decals

Decals for ignition switch and transport clutch pedal.

BRAKE AND GENERAL SAFETY DECALS

Parking, Service Brake, and Slope Limit Decals

Decals related to brake operation and slope limitations.

ASSEMBLY

Seat Assembly

Instructions for mounting and connecting the mower seat assembly.

PREPARATION

OPERATION

HEIGHT OF CUT ADJUSTMENT

REEL TO BED KNIFE ADJUSTMENT

REEL END PLAY ADJUSTMENT

ADJUSTING DRIVE BELT TENSION

REAR CUTTING UNIT DRIVE BELT TENSION

REAR CUTTING UNIT CHAIN TENSION

BED KNIFE REPLACEMENT

BACK LAPPING PROCEDURE

TROUBLE-SHOOTING

Tractor Unit Troubleshooting

Common issues and checks for the tractor unit, such as engine not starting or mower not moving.

Cutting Units Troubleshooting

Common issues and checks for the cutting units, such as not turning, not cutting, or uneven cut.

DRIVE MECHANISM -- UPPER PORTION

DRIVE MECHANISM -- MIDDLE PORTION

DRIVE MECHANISM -- LOWER PORTION

DRIVE MECHANISM -- MODEL 68 DL

REAR AXLE & DIFFERENTIAL

WING CUTTING UNITS

REAR CUTTING UNIT

SAFETY SWITCHES

Safety Switch Operation Chart

Table detailing engine response based on safety switch states.

ELECTRICAL DIAGRAMS

Model 68 SR Electrical Diagram

Safety switch and circuit diagram for the Model 68 SR.

Model 68 DL Electrical Diagram

Safety switch and circuit diagram for the Model 68 DL.

ELECTRICAL PARTS

SPECIFICATIONS

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